Across
- 1. What heats the earth
- 3. Sharing car lifts with others.
- 4. The planet we live on
- 6. The type of fuels being burned
- 8. The ice ____ are melting.
- 9. Natural
Down
- 1. We must _____ the earth.
- 2. When the water is dirty and full of rubbish it is ______.
- 5. We must reuse, reduce _______.
- 7. Fish confuse this for food.